Add IPMI 2.0 ColdReset command support

* Implement reset by reboot command issued in a shell
* Work with related changes in phosphor-host-ipmid repo

Resolves openbmc/openbmc#437

Change-Id: I8143b1ee9c0d547ee47e5bd3659a5126b6e5af98
Signed-off-by: Nan Li <william.bjlinan@hotmail.com>
diff --git a/libopenbmc_intf/openbmc_intf.xml b/libopenbmc_intf/openbmc_intf.xml
index cabe910..81445a3 100644
--- a/libopenbmc_intf/openbmc_intf.xml
+++ b/libopenbmc_intf/openbmc_intf.xml
@@ -101,6 +101,7 @@
 		<signal name="Started"/>
 	</interface>
 	<interface name="org.openbmc.control.Bmc">
+		<method name="coldReset"/>
 		<method name="warmReset"/>
 	</interface>
 	<interface name="org.openbmc.control.Host">